At present, Yunbai Environment has completed thousands of chimney engineering cases, accumulated rich experience and established a good reputation; among them, Beijing Olympic Games accounts for 65%, Shanghai World Expo accounts for 75%, Lujiazui Financial District accounts for more than 85% of the market share and Hong Kong Municipal Engineering and other typical cases; and more than 50 industrial chimneys are completed annually, involving chemical industry, electricity, biopharmaceuticals and new energy. Source, environmental protection, etc. Long-term cooperation customers include Bayer, Basf, Whitson Engineering, Wally Parson, Shanghai Electric, Oriental Electric, Germany Duer and so on.